Boeren, A. J. (1990). Education, culture and productive life. CESO.
Chicago Style (17. basım) AtıfBoeren, Ad J.J.M. Education, Culture and Productive Life. The Hague, Netherlands: CESO, 1990.
MLA (9th ed.) AtıfBoeren, Ad J.J.M. Education, Culture and Productive Life. CESO, 1990.
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